The CIDR block or blocks that define a VNet. Every subnet has to fall inside it; blocks can be added, or altered when nothing is using them.
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Terms in this definition
- CIDR
Notation for IP ranges that writes an address followed by a prefix length, as in 10.1.255.0/24; short for Classless Inter-Domain Routing.
- DEFINE
An optional keyword at the start of a DAX query, placed before the first EVALUATE, for declaring things such as measures and variables that exist only for that query. A measure declared this way replaces a model measure with the same name just while the query runs.
- VNet
A private network belonging to a single subscription and region and covering all of that region's availability zones. A VM can only use a VNet located in the same region.
- Subnet
A segment of a VNet's address space from which resources receive private IPs. Azure holds back five addresses per subnet (the first four and the last), leaving 251 usable in a /24 and three in a /29, the smallest IPv4 subnet.
Related terms
- VirtualNetwork (service tag)
Represents not just the VNet's own address space but also any peered VNets and connected on-premises ranges, as a service tag.